Resilient wheel.



L. BOOTH.

RESLIENT WHEEL.

APPLICATION FILED 1326.6, 1912.

Lm'h Patented Jan. 5, 1915.

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LYMAN BOTH, OF DXGN, ILLINDIS.

nnsimnnr WHEEL Specicaton of Letters Patent.

Patented Jan.. 5, 1215.

Application filed December 6, 1912. Serial No. 735,253.

T0 all whom it may concern:

Be it known that l, LYMAN BOOTH, a citizen of the United States, residing at Dixon, in the county of Lee and State 01E lllinois, have invented certain new and useful 1mprovements in Resilient `Wheels, o1 which the following is a speciiication.

My invention has reference to wheels `for automobiles and similar vehicles, and has for its purpose the provision of a rim for such wheels which will permit of the use of a solid tire of rubber or other suitable material, and at the same time possess the desired amount o1E resiliency.

My device is specially designed to be substituted for the usual pneumatic tire of inlatable type, but with a little adaptation it can be embodied in a wheel particularly constructed with reference thereto.

1n the drawings; Figure 1 shows a section of a wheel embodying my invention, with some of the parts removed. Fig. 2 is a cross-section on the line -m of Fig. 1, with the parts inverted. ln Fig. 3 is a cross section centrally of one of the rim joints. Fig. d is an outer face view of one oi the plates 6. Fig. 5 is an illustration of a portion of the rim from the lower side thereof, at one of the joints.

Similar parts are indicated by corresponding numbers of reference throughout the several iigures.

1 represents an outer rim in its entirety, such rim being constructed of sections 2, united at their ends by means of a hollow pintle 3, passing through knuckles l on one of said plates and a knuckle 5 on the opposite plate, said last-named plate being also provided at its end with a pair of guardplates 6, the inner edges of which are beveled to prevent dirt or other sediment being caught and held thereon. rllhe pintle 3 also passes partly through the plates 6 and is provided at one end with a head 7, and at the opposite end is interiorly threaded and provided with a similarly threaded plug 8, having a head 9 accommodated by a corresponding depression 10 in the plate 6. The head 9 is provided with recesses 11, which may be used in connection with a properly shaped tool to remove the plug 8, or return it to position.

The rim 1 is provided at each side with an outwardly turned flange 12, between which anges is held a tire 13, preferably a :telly 23.

constructed of solid rubber. On the inner face of the flange 12 is a spring 111, the tree bent end oic which passes through a perforation in the plate 6, and is adapted to engage one or other of the recesses 11 and lock the head 9 from turning. lii/vhen the key is applied to the head 9 to turn the same the end of the spring 1li is 'forced inwardly, disengaging it 'from the head.

Each of the joints between the sections 2 is provided with a stirrup 15, pivotally supported on the pintle 8 by means of a pair of I-bolts 16, passing through said stirrup and provided at their outer ends with nuts 17. rlhe ends of the stirrup 15 are beveled to correspond with the edges of the plates 6, and aid in shedding dirt or other material through which the wheel passes. rlhe inner face of the stirrup is concaved, and secured therein is a spring 18, such spring being held in place by means or a plate 19, secured on the bolts 16 beneath the nuts 17. At the opposite side said spring is open, and the ends turned outwardly from such spring, such ends being accommodated in a channel 20 in a plate 21, adapted to be held within the rim 22, usually employed to hold the pneumatic tire, and secured to rlhe spring 18 is held in place against thel plate 21 by means of a clampplate formed of two parts 2d and 25, having perforated cars 26 and 27, through which passes a bolt 28, provided with a nut 29. The ear 27 is interiorly threaded to engage the bolt 28, and the nut 29 acts as a lock-nut. The ends of the plates 24l and 25 are held by the inwardly turned edges oil' the rim 22. To place in position said plates are separated and put in place separately, and the ears 26 and 27 then secured to each other. 1t will be obvious that i1' desired the spring 18 can be clamped or bolted immo diately to the elly 23.

IThe pintle 3 is provided with a number oit' small perforations, rendering such part useful as an oil cup, to provide lubricating material between such pintle and the knuckles embracing the same. To prevent the oil from spreading to the other parts of the joint an absorbing pad 30 is provided, held in position by a iiexible guard or shield 81, secured to the sections 2 at each side of the joint. Such guard and pad also prevent particles of dirt from entering the joint, which is the only vulnerable part of the mechanism; thelarge heads 7 and l9 protect the ends thereof, and the tire 13 forms an ample shield for the outer side.

As the joint is the most flexible part of the rim it is considered to be an advantage to have the springs 18 interposed'at those points. A further advantage is found in the fact that the pintle of the joint can be employed as a means of support for the stirrup 15, and it is not necessary to furnish a separate support therefor, as would be the case if such springs were introduced at a point midway of the joints. In case of the wheel passing over a large obstruction two or more of the joints will be simultaneously affected, whereas in case of a smaller obstacle the stress will come directly upon one of the joints, or upon one of the sections and be distributed between two of the joints at the ends thereof.

The connection of the springs 18 with the sections'2 by means of the stirrups 15 pivotally supported at the joint of such sections renders such springs less susceptible to the action of such joints, and gives such springs free movement with reference thereto. If the connection between such springs and sections were more rigid the movement of the sections would be directly imparted to the springs, and throw them out of proper position. The use of clamp-plates to hold the to secure by Letters Patent of the United A States, is:

A. resilient wheel, comprising an inner rim; an outer rim, formed of sections provided at their ends with interlocking knuckles; pintles uniting said knuckles; a plurality of collar-shaped springs attached to the inner rim at their inner sides; pairs of clamp-plates embracing said springs at their outer sides; and pairs of bolts uniting said clamp-plates at the sides of the springs, and

provided at one end with eyes adapted to engage the pintles of the section joints.

In testimony whereof I aiix my signature in presence of two witnesses.

LYMAN BOOTH.

Witnesses:

W. N. HASKELL, DANA P. MUNN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

